All categories

2 years ago

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle

Mathematics

1 answer:

Leni [432]2 years ago

6 0

Answer:

P = 63.6 inches

Step-by-step explanation:

you need to find the length of the third side:

9² + 21² = c²

81 + 441 = c²

c² = 522

c = $\sqrt{522}$

c ≈ 22.8

P = 18 + 2(22.8)

P = 63.6 inches

You might be interested in

What are the solution and the answer?

dedylja [7]

Answer:

I think its 40 if i did it right Ill show you how i did it

Step-by-step explanation:

First I added 12+12 and the is 24.

The I added 8+8 and that was 16.

Lastly I added 16+24= 40

7 0

2 years ago

Read 2 more answers

Solve for d d + 8 < 35

9966 [12]

Answer:

d < 27

Step-by-step explanation:

Solve for d by subtracting 8 from both sides. This isolates d:

d + 8 < 35

-8 -8

------- -------

d < 27

5 0

3 years ago

The sum of four consecutive odd integerd is -72.

Solnce55 [7]

n, n + 2, n + 4, n + 6 - four consecutive odd integers

-72 - the sum

The equation:

n + (n + 2) + (n + 4) + (n + 6) = -72

n + n + 2 + n + 4 + n + 6 = -72

4n + 12 = -72 |subtract 12 from both sides

4n = -84 |divide both sides by 4

n = -21

n + 2 = -21 + 2 = -19

n + 4 = -21 + 4 = -17

n + 6 = -21 + 6 = -15

Answer: -21, -19, -17, -15.

8 0

3 years ago

Need help *URGENT* 7th grade Vertical Angles

Blababa [14]

Answer:

EBC = 90

FBG = 25

ABF = 115

ABG = 140

EBG = 50

Hope that helped :)

7 0

3 years ago

Charles drew a plan for a rectangular piece of material that hehe will use for a blanket. Three of the vertices are ( -2.3 and

mote1985 [20]

Answer:

The coordinates of the fourth vertex is ( 2.1 , -3.6)

Step-by-step explanation:

Given:

The vertices are ( -2.3 and −3.6), (−2.3, and 2.2), and (2.1, and 2.2).

To Find :

The fourth coordinate = ?

Solution:

Let (a,b) be the missing coordinates

Now let us use the the mid point formula and find the missing coordinate.

Let ( -2.3 ,−3.6) be the point A

Let (−2.3,2.2) be the point B

Let (2.1, 2.2) be the point C

The mid point of AC should be BD

Step 1: Finding The mid pint of AC

The mid pint of AC

$(\frac{(-2.3+2.1)}{2} , \frac{(-3.6+2.2)}{2})$

$(\frac{(-0.2)}{2} , \frac{(-1.4)}{2})$

$(-0.1, -0.7)$

Step 2: Lets Equate the midpoints'

The mid pint of BD

=> $(\frac{(a+(-2.3))}{2} , \frac{(b+2.2)}{2})$ = (-0.1, -0.7)

$\frac{(a+(-2.3))}{2} = -0.1$

$(a-2.3) = -0.1 \times 2$

$(a-2.3) = -0.2$

$a = -0.2 +2.3$

a = 2.1

$\frac{(b+2.2)}{2} = -0.7$

$(b+2.2)= -0.7 \times 2$

$(b+2.2)= -1.4$

$b= -1.4 -2.2$

b = -3.6

8 0

3 years ago